Patents by Inventor Debra Lynn Prikkel

Debra Lynn Prikkel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods and apparatus for regulating turbine clearance control system airflow
    Patent number: 6722137
    Abstract: A butterfly valve for a gas turbine engine includes a valve shaft and a valve disk. The valve disk has a centerline axis that extends through the valve disk. The valve disk also includes a shaft opening, an outer periphery, an outer surface, a first side, and a second side. The first side is opposite the second side. The shaft opening extends through the valve disk adjacent the centerline axis, and is sized to receive the valve shaft therein. The disk outer surface extends over the first and second sides, and is tapered between the outer periphery and the centerline axis over at least one of the disk first and second sides.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: April 20, 2004
    Assignee: General Electric Co.
    Inventors: Robert Proctor, John William Hanify, Debra Lynn Prikkel, Michael Jay Epstein, Julius John Montgomery
  • Methods and apparatus for regulating turbine clearance control system airflow
    Publication number: 20030034474
    Abstract: A butterfly valve for a gas turbine engine includes a valve shaft and a valve disk. The valve disk has a centerline axis that extends through the valve disk. The valve disk also includes a shaft opening, an outer periphery, an outer surface, a first side, and a second side. The first side is opposite the second side. The shaft opening extends through the valve disk adjacent the centerline axis, and is sized to receive the valve shaft therein. The disk outer surface extends over the first and second sides, and is tapered between the outer periphery and the centerline axis over at least one of the disk first and second sides.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 20, 2003
    Inventors: Robert Proctor, John William Hanify, Debra Lynn Prikkel, Michael Jay Epstein, Julius John Montgomery